Iyo jstack yekuraira-mutsara utility inonamira kune yakatsanangurwa maitiro kana musimboti faira uye inodhinda masaraki eshinda dzese dzakanamirwa kumuchina chaiwo, kusanganisira shinda dzeJava neVM shinda dzemukati, uye nemafuremu akasarudzika. Iyo yekushandisa zvakare inoita deadlock yekuona.
Jstack inoshandiswa nei?
Papakati payo jstack chishandiso chiri nyore kukuratidza maturusi eese tambo dzeJava dzinomhanya mukati mechinangwa JVM. Ingonongedza kuJVM maitiro kuburikidza nepid uye uwane printout yeese tambo stack tracks panguva iyoyo nenguva.
Chii chinonzi Jstack command?
Iyo jstack yekuraira inodhinda Java stack traces yeJava shinda kune yakatarwa Java maitiro. Kune yega yega Java furemu, zita rekirasi yakazara, zita renzira, byte kodhi index (BCI), uye nhamba yemutsara, kana iripo, inodhindwa. Mazita eC++ akacheneswa haana kushatiswa.
Chii chinonzi JMAP uye Jstack?
JMap neJStack zvimwe ndizvo zvakakosha zvinoshandiswa mubhokisi rematurusi echero Java developer. Nekushanda kwematurusi ese aya akasanganiswa, unogona kugadzirisa nyaya uye womhanyisa diagnostics yechirongwa chejava chauri kukodha.
Ini ndinowana sei Jstack paLinux?
Mhanya unotevera kuraira mumusangano welinux, tora iyo PID yekupinda java. KUTI Utore JSTACK: Mhanya iyo inotevera mirairo uchitsiva: negwara rinoenda kudhairekitori iro Ongorora yakaiswa pazasi.
Ndinoshandisa sei Jstack?
Kugadzira tambo dumps pamahwindo
- Ziva maitiro. Tangisa iyo Task maneja ne, nekudzvanya Ctrl + Shift + Esc uye tsvaga iyo process ID yeJava (Confluence) maitiro. …
- Mhanyai jstack Kutora Imwe Thread Dump. Uyu murairo uchatora tambo imwe yekuraswa kweiyo process id , mune iyi pid iri 22668:
15 Oct. 2018 g.
Kuuraya kunorevei Linux?
Murairo wekuuraya unoshandiswa paLinux uye mamwe maUnix-senge masisitimu anoshanda kumisa maitiro pasina kubuda kana kutangazve (kureva, kutangazve) komputa. Nokudaro, inonyanya kukosha kune kugadzikana kwemaitiro akadaro.
Chii chinonzi JCMD?
Iyo jcmd utility inoshandiswa kutumira zvikumbiro zvemirairo yekuongorora kuJVM, uko zvikumbiro izvi zvinobatsira pakudzora Java Flight Recordings, kugadzirisa dambudziko, uye kuongorora JVM neJava Applications.
Chii chinonzi JMAP muJava?
Iyo jmap yekuraira-mutsara utility inodhinda zviverengero zvine chekuita nendangariro yeVM inomhanya kana faira repakati. … Pamusoro pezvo, kuburitswa kweJDK 7 kwakaunza iyo -dump:format=b,file= filename sarudzo, izvo zvinoita kuti jmap irase murwi weJava mubhinari HPROF fomati kune rimwe faira rataurwa. Iyi faira inokwanisa kuongororwa nejhat tool.
Chii chinonzi thread muJava?
Tambo, muchirevo cheJava, ndiyo nzira inoteverwa paunenge uchiita chirongwa. … MuJava, kugadzira shinda kunoitwa nekushandisa chinongedzo uye kuwedzera kirasi. Yese Java shinda inogadzirwa uye inodzorwa nejava. lang. Thread class.
JMAP inotora nguva yakareba sei kumhanya?
Maitiro muchidimbu sezvakataurwa anotora anenge 20-30 masekondi. Ndinokukurudzira kuti uite nekukurumidza sezvaunokwanisa. Paunenge wangopedza nedanho rekutanga unogona kutangazve application yako kuti uisimudze uye ishande zvakare. Munhanho yechipiri isu tichashandura iyo java core faira kuita java murwi wekurasa faira.
Ini ndinomhanyisa sei JMAP command muLinux?
jmap chishandiso chinotumirwa neJDK. Heano maitiro aunofanirwa kuidaidza: jmap -dump:live,file= kupi pid: ndiyo Java Process Id, ine murwi wekurasirwa kunofanirwa kutorwa faira-nzira: ndiyo nzira yefaira inonyorwa murwi. Cherechedza: Izvo zvakakosha kuti upfuure iyo "kurarama" sarudzo mumutsetse wekuraira.
Chii chinonzi dump?
Dumpo remurwi mufananidzo wezvinhu zvese zviri muJava Virtual Machine (JVM) murwi pane imwe nguva nenguva. Iyo JVM software inogovera ndangariro yezvinhu kubva murwi kune ese makirasi mamiriro uye arrays.
Ndekupi thread dump muLinux?
Step 1: Tora iyo PID yeJava yako maitiro
Chekutanga chidimbu cheruzivo chauchazoda kuti ukwanise kuwana tambo yekurasa ndiyo yako Java process's PID. Cherechedza: MuLinux neUNIX, unogona kumhanyisa murairo uyu se sudo -u mushandisi jps -l, uko "mushandisi" ndiro zita remushandisi iro maitiro eJava ari kushanda se.
Chii chine thread dump?
Kuraswa kweshinda ipikicha yemamiriro eshinda dzese dziri chikamu chemaitiro. Mamiriro eshinda imwe neimwe anoratidzwa neinonzi stack trace, iyo inoratidza zviri mukati metambo yeshinda. Dzimwe tambo ndedzeJava application yauri kuita, nepo dzimwe dziri JVM dzemukati shinda.
Ndinotarisa sei kana chirongwa cheJava chiri kushanda muUnix?
Kana iwe uchida kutarisa basa rejava application, mhanyisa 'ps' kuraira ne'-ef' sarudzo, izvo zvinokuratidza kwete chete murairo, nguva uye PID yezvese maitiro ekumhanya, asiwo yakazara rondedzero, iyo ine zvinodiwa. ruzivo nezve faira iri kuitwa uye chirongwa paramita.